通过调节MMP1-PD-L1轴,SPHK1促进了HNSCC的免疫逃避
Qi Fang1,2,3,4, Xiao Chen5,6, Fei Cao1,2,3,4
1Department of Head and Neck Surgery, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Guangzhou 510060, Guangdong, People's Republic of China.
Theranostics
|December 4, 2024
概括
斯芬哥辛激酶1 (SPHK1) 通过抑制抗瘤免疫力,促进头癌的生长. SPHK1和MMP1预测对PD-1免疫疗法的反应,并作为治疗点.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 免疫检查点抑制剂 (ICI) 在头部和部状细胞癌 (HNSCC) 中表现有前途,但反应率有限.
- 瘤微环境中氨酸激酶 (SPHK) 的作用及其对HNSCC免疫疗法的影响尚不清楚.
研究的目的:
- 调查氨酸激酶1 (SPHK1) 在HNSCC免疫学中的作用及其作为免疫治疗反应生物标志物的潜力.
主要方法:
- 综合生物信息学分析,免疫能力高的HNSCC小鼠模型中的功能研究,以及瘤T细胞共同培养.
- 涉及MAPK1通路的机制研究,以阐明SPHK1在MMP1和PD-L1表达中的调节作用.
主要成果:
- 通过抑制抗瘤免疫力,SPHK1显著促进了HNSCC的生长.
- SPHK1通过MAPK1通路调节矩阵金属蛋白酶-1 (MMP1) 表达,从而影响编程细胞死亡配体1 (PD-L1) 的表达.
- SPHK1和MMP1水平预测了PD-1单克隆抗体 (PD-1 mAb) 免疫治疗的疗效,并且是HNSCC患者生存的独立风险因素.
结论:
- 通过调节MMP1-PD-L1轴,SPHK1在HNSCC免疫逃避中发挥着新的作用.
- 在HNSCC中,SPHK1和MMP1被确定为PD-1 mAb治疗反应的预测生物标志物.
- SPHK1为改善HNSCC免疫治疗结果提供了潜在的治疗标.
相关概念视频
Abnormal Proliferation
4.4K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.4K
Hedgehog Signaling Pathway
7.3K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
7.3K
Interactions Between Signaling Pathways
6.2K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.2K
The JAK-STAT Signaling Pathway
8.7K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.7K
Regulation of Hematopoietic Stem Cells
3.1K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.1K
Multipotency of Hematopoietic Stem Cells
3.0K
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.0K


